2010 Fiscal Year Final Research Report
Controlled electronic phases of transition metal oxides
| Project/Area Number |
19204035
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Japan Atomic Energy Agency (2010)
Tohoku University (2007-2009) |
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Principal Investigator |
MAEKAWA Sadamichi 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, センター長 (60005973)
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| Co-Investigator(Kenkyū-buntansha) |
MORI Michiyasu 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 副主任研究員 (30396519)
IEDA Junichi 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 任期付研究員 (20463797)
ADACHI Hiroto 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 任期付研究員 (10397903)
OHE Junichiro 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 博士研究員 (40510251)
KUBO Katsunori 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究員 (50391272)
ONISHI Hiroaki 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究員 (10354903)
KOSHIBAE Wataru 理化学研究所, 基幹研究所, 研究員 (20273253)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 磁性半導体 / 強磁性 / 第一原理計算 / 量子モンテカルロ法 / 強相関電子系 / 遷移金属酸化物 / 高温超伝導 / 熱起電力 |
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| Research Abstract |
In the strongly correlated electron systems, various electronic phases such as superconductivity and ferromagnetism are competed. This study aims to understand such competing electronic phases in the correlated electron systems by use of numerical techniques. Magnetic semiconductors show some unique properties by a coupling between conduction electrons and magnetic ions. Due to this coupling, one needs to consider simultaneously the electronic states of semiconductors and the electrons correlation inducing the magnetism. In this study, we combine the density functional theory for the electronic states of semiconductors and the quantum Monte Carlo method to include the correlation effects of magnetic ions. Furthermore, the thermoelectric power in the correlated electron systems is clarified by the dynamical mean-field theory.
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[Journal Article] Polarization-analyzed resonant inelastic x-ray scattering of the orbital excitations in KCuF_32011
Author(s)
Ikeuchi, K. Kuzushita, T. Inami, K. Ohwada, M. Yoshida, I. Jarrige, N. Tatami, S. Niioka, D. Bizen, Y. Ando, J. Mizuki, S. Maekawa, Y. Endoh
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Journal Title
Phys. Rev. B
Volume: Vol.83
Pages: 241101(1-4)
DOI
Peer Reviewed
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[Journal Article] Spatially homogeneous ferromagnetism of(Ga, Mn) As2010
Author(s)
S. R. Dunsiger, J. P. Carlo, T. Goko, G. Nieuwenhuys, T. Prokscha, A. Suter, E. Morenzoni, D. Chiba, Y. Nishitani, T. Tanikawa, F. Matsukura, H. Ohno, J. Ohe, S. Maekawa and Y. J. Uemura
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Journal Title
Nature Materials
Volume: Vol.9
Pages: 299-303
DOI
Peer Reviewed
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[Journal Article] Momentum-dependent charge excitations of a two-leg ladder : Resonant inelastic x-ray scattering of(La, Sr, Ca)_<14> Cu_<24> O_<41>2007
Author(s)
K. Ishii, K. Tsutsui, T. Tohyama, T. Inami, J. Mizuki, Y. Murakami, Y. Endoh, S. Maekawa, K. Kudo, Y. Koike, and K. Kumaga
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Journal Title
Phys. Rev. B
Volume: Vol.76
Pages: 045124(1-7)
DOI
Peer Reviewed
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